openldap/servers/slapd/back-ldbm/add.c
Kurt Zeilenga 745a10f080 Update LDBM cache so that it manages it's own state.
cache_set_state() and state args are no history.
Move cache_entry_cmp() and friends to slapd/entry.c to allow sharing
of functions between backends..  Renamed to entry_cmp().
1999-02-11 17:46:56 +00:00

226 lines
4.9 KiB
C

/* add.c - ldap ldbm back-end add routine */
#include "portable.h"
#include <stdio.h>
#include <ac/socket.h>
#include <ac/string.h>
#include "slap.h"
#include "back-ldbm.h"
#include "proto-back-ldbm.h"
int
ldbm_back_add(
Backend *be,
Connection *conn,
Operation *op,
Entry *e
)
{
struct ldbminfo *li = (struct ldbminfo *) be->be_private;
char *pdn;
Entry *p = NULL;
int rootlock = 0;
int rc;
Debug(LDAP_DEBUG_ARGS, "==> ldbm_back_add: %s\n", e->e_dn, 0, 0);
/* nobody else can add until we lock our parent */
ldap_pvt_thread_mutex_lock(&li->li_add_mutex);
if ( ( dn2id( be, e->e_ndn ) ) != NOID ) {
ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
entry_free( e );
send_ldap_result( conn, op, LDAP_ALREADY_EXISTS, "", "" );
return( -1 );
}
if ( global_schemacheck && oc_schema_check( e ) != 0 ) {
ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
Debug( LDAP_DEBUG_TRACE, "entry failed schema check\n",
0, 0, 0 );
entry_free( e );
send_ldap_result( conn, op, LDAP_OBJECT_CLASS_VIOLATION, "",
"" );
return( -1 );
}
/*
* Get the parent dn and see if the corresponding entry exists.
* If the parent does not exist, only allow the "root" user to
* add the entry.
*/
if ( (pdn = dn_parent( be, e->e_ndn )) != NULL ) {
char *matched = NULL;
/* get parent with writer lock */
if ( (p = dn2entry_w( be, pdn, &matched )) == NULL ) {
ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
Debug( LDAP_DEBUG_TRACE, "parent does not exist\n", 0,
0, 0 );
send_ldap_result( conn, op, LDAP_NO_SUCH_OBJECT,
matched, "" );
if ( matched != NULL ) {
free( matched );
}
entry_free( e );
free( pdn );
return -1;
}
/* don't need the add lock anymore */
ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
free(pdn);
if ( matched != NULL ) {
free( matched );
}
if ( ! access_allowed( be, conn, op, p,
"children", NULL, ACL_WRITE ) )
{
Debug( LDAP_DEBUG_TRACE, "no access to parent\n", 0,
0, 0 );
send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
"", "" );
/* free parent and writer lock */
cache_return_entry_w( &li->li_cache, p );
entry_free( e );
return -1;
}
} else {
/* no parent, must be adding entry to root */
if ( ! be_isroot( be, op->o_ndn ) ) {
ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
Debug( LDAP_DEBUG_TRACE, "no parent & not root\n", 0,
0, 0 );
send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
"", "" );
entry_free( e );
return -1;
}
/*
* no parent, acquire the root write lock
* and release the add lock.
*/
ldap_pvt_thread_mutex_lock(&li->li_root_mutex);
rootlock = 1;
ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
}
e->e_id = next_id( be );
/*
* Try to add the entry to the cache, assign it a new dnid.
*/
rc = cache_add_entry_rw(&li->li_cache, e, CACHE_WRITE_LOCK);
if ( rc != 0 ) {
if( p != NULL) {
/* free parent and writer lock */
cache_return_entry_w( &li->li_cache, p );
}
if ( rootlock ) {
/* release root lock */
ldap_pvt_thread_mutex_unlock(&li->li_root_mutex);
}
Debug( LDAP_DEBUG_ANY, "cache_add_entry_lock failed\n", 0, 0,
0 );
/* return the id */
next_id_return( be, e->e_id );
/* free the entry */
entry_free( e );
if(rc > 0) {
send_ldap_result( conn, op, LDAP_ALREADY_EXISTS, "", "" );
} else {
send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "", "" );
}
return( -1 );
}
rc = -1;
/*
* add it to the id2children index for the parent
*/
if ( id2children_add( be, p, e ) != 0 ) {
Debug( LDAP_DEBUG_TRACE, "id2children_add failed\n", 0,
0, 0 );
send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "", "" );
goto return_results;
}
/*
* Add the entry to the attribute indexes, then add it to
* the id2children index, dn2id index, and the id2entry index.
*/
/* attribute indexes */
if ( index_add_entry( be, e ) != 0 ) {
Debug( LDAP_DEBUG_TRACE, "index_add_entry failed\n", 0,
0, 0 );
send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "", "" );
goto return_results;
}
/* dn2id index */
if ( dn2id_add( be, e->e_ndn, e->e_id ) != 0 ) {
Debug( LDAP_DEBUG_TRACE, "dn2id_add failed\n", 0,
0, 0 );
send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "", "" );
goto return_results;
}
/* id2entry index */
if ( id2entry_add( be, e ) != 0 ) {
Debug( LDAP_DEBUG_TRACE, "id2entry_add failed\n", 0,
0, 0 );
(void) dn2id_delete( be, e->e_ndn );
send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "", "" );
goto return_results;
}
send_ldap_result( conn, op, LDAP_SUCCESS, "", "" );
rc = 0;
return_results:;
if (p != NULL) {
/* free parent and writer lock */
cache_return_entry_w( &li->li_cache, p );
}
if ( rootlock ) {
/* release root lock */
ldap_pvt_thread_mutex_unlock(&li->li_root_mutex);
}
/* free entry and writer lock */
cache_return_entry_w( &li->li_cache, e );
return( rc );
}